Accretion of matter by a Charged dilaton black hole
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910452195262464 |
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| author | Jia, Yinan He, Tong-Yu Wang, Wen-Qian Han, Zhan-Wen Yang, Rong-Jia |
| author_facet | Jia, Yinan He, Tong-Yu Wang, Wen-Qian Han, Zhan-Wen Yang, Rong-Jia |
| contents | Considering accretion onto a charged dilaton black hole, the fundamental equations governing accretion, general analytic expressions for critical points, critical velocity, critical speed of sound, and ultimately the mass accretion rate are obtained. A new constraint on the dilation parameter coming from string theory is found and the case for polytropic gas is delved into a detailed discussion. It is found that the dialtion and the adiabatic index of accreted material have deep effects on the accretion process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_15654 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Accretion of matter by a Charged dilaton black hole Jia, Yinan He, Tong-Yu Wang, Wen-Qian Han, Zhan-Wen Yang, Rong-Jia General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory Considering accretion onto a charged dilaton black hole, the fundamental equations governing accretion, general analytic expressions for critical points, critical velocity, critical speed of sound, and ultimately the mass accretion rate are obtained. A new constraint on the dilation parameter coming from string theory is found and the case for polytropic gas is delved into a detailed discussion. It is found that the dialtion and the adiabatic index of accreted material have deep effects on the accretion process. |
| title | Accretion of matter by a Charged dilaton black hole |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory |
| url | https://arxiv.org/abs/2401.15654 |